Im Fach „Algorithmen und Programmierung für Ingenieure“ werden an der TU Ilmenau noch papierbasierte Klausuren mit einem sehr geringen Multiple-Choice-Anteil geschrieben. Entsprechend hoch ist der Aufwand der händischen Korrektur. Zudem müssen selbst zum Zeitpunkt der Prüfung die meisten Studierenden noch als Programmieranfänger gesehen werden. Hierdurch führen Ansätze, welche compilierbaren Quellcode voraussetzen, sowohl beim Üben als auch bei Klausuren regelmäßig nicht zu angemessenen Bewertungen. Dieser Artikel beschreibt die Entwicklung eines Aufgabengenerators für einen bestimmten Aufgabentyp im Kontext von Java und OOP. Die automatische Generierung der Aufgaben soll in Bezug auf die zielgerichtete Vorbereitung auf die Prüfung den Studierenden Übungsmöglichkeiten bieten. Hinsichtlich der Klausurkontrolle sollen zudem auch Bewertungsschemen zur Anwendung bei der händischen Korrektur erzeugt werden.

Technical documents such as historical patents are important cultural assets and part of our cultural and historical heritage. The Geheimes Staatsarchiv Preußischer Kulturbesitz Berlin is an archive with thousands of historic Prussian patents from the 19th century. These are examples of the beginning of the German industrialization. The documents cover patent drawings and descriptions as well as comments from the patent examiners. This paper is about first common activities of the Berlin state archive and the Technische Universität Ilmenau to make the documents available to a broad public. Aside from the digital reproduction and presentation of texts and images the activities focus on remodeling the technical devices and animation of models with WebGL in web browsers. In the created interactive animations different functional and constructive aspects can be explained to the viewers. The original content as well as the derived content like videos and interactive animations is finally made available in the open access portal Digital Mechanism and Gear Library ( www.dmg-lib.org ). This paper describes the used work-flow and experiences showing selected examples.

This paper describes the Thesaurus Concept Editor (Thedi) implemented as a part of the Digital Mechanism and Gear Library (DMG-Lib), a digital library containing information about mechanisms and gears. Thedi is introduced as new working environment for the IFToMM Permanent Commission (PC) for Standardization of Terminology. This allows the PC to work more effective and comprehensible on the IFToMM dictionary [1]. From the user’s point of view the new possibilities concerning the support of more than four languages, the links to occurrences and the shorter release cycles (or even instant updates) make the IFToMM dictionary more valuable.

This document describes an online tool, which supports different synchronized views onto the same algorithm in parallel, e.g. structograms (Nassi–Shneiderman diagrams), Java code and the state of used variables. It can also animate the program and data flow. This is essential for self-controlled learning especially for novice programmers. Students can focus on the view they prefer and explore the relationship to the other views at their own speed, e.g. by stepping through the program and visualize the current state of the variables as well as the console output. The tool gives the possibility to modify the structure as well as the texts in the structograms. It supports exports into different file formats, i.e. for the creation of teaching material or solutions for exercises. The HTML5 implementation allows easy access to the tool on different platforms as well as its integration into web-based learning environments.

Over the years the IFToMM dictionary has been grown up to a comprehensive digital resource which can be used as dictionary, thesaurus, taxonomy as well as glossary in several languages in parallel. Regarding today's needs of information retrieval in digital libraries it makes sense to see the IFToMM-terminology dataset as an expandable semantic network which can be used to solve different retrieval problems in digital libraries providing content on mechanisms and machine science and to support the understanding of foreign language information in this field. The article presents the DMG-Lib as such a digital library and shows, how the content of the IFToMM dictionary can be used to improve the retrieval process. Furthermore the implementation of applications is discussed, e.g. how the IFToMM dictionary content can be extended and how the maintenance process of the IFToMM dictionary can be supported by online tools.

The Geheimes Staatsarchiv Preußischer Kulturbesitz Berlin is an archive with thousands of patents from the 19th century. The documents include patent texts and figures as well as the comments of the reviewers. The paper is about first common activities of the archive and the Ilmenau University of Technology to make the documents available to a broad public. Aside of the digital reproduction and presentation of texts and images the activities focus on remodeling the technical devices and animate the models with WebGL in web browsers. In the created interactive animations different functional and constructive aspects can be explained to the viewers. The original content as well as the derived content like videos and interactive animations is finally made available in the DMG-Lib portal. The paper describes the used workflow and experiences as well as selected examples.

eleed, Iss. 8 - Motion systems are important parts of technical products. Those are mostly composed of mechanisms and gears. Today mechanism and gear technology is essential for the whole industry and it will become even more important due to the introduction of new technologies and respective new fields of applications.

In today’s information society large collections of data arise by the digitization of various content sources. For example, the DMG-Lib, a digital library to collect, preserve and present the knowledge of mechanism and gear science, contains a wide range of digitized information resources in very heterogeneous media types. A main issue of all these collections is to make their contents available for new users in an adequate way. In case of DMG-Lib, the resources are enriched with various additional information like animations and simulations. Combined with innovative multimedia applications and a semantic information retrieval environment, the DMG-Lib provides an efficient access to this knowledge space of mechanism and gear science, for both experts and laymen.

The most important aim of the IFToMM is "to promote research and development in the field of Machines and Mechanisms by theoretical and experimental methods, along with their practical application" (see article 2.1 of the statutes [12]). This is strongly connected with access to current knowledge, experience and skills in the field of mechanism and machine science (resp. motion science).However this content is characterized by a high diversity and heterogeneity, because it is mostly scattered, represented in different forms (physical model, drawings, textbooks etc.), languages and mediums. Therefore there is a need to establish an open access, multilingual digital library in this field of techno-cultural heritage.Against this background, members of three IFToMM-Commissions initiated a joint project called thinkMOTION. In this project, which promotes the idea of open access, the techno-cultural heritage and the current developments in motion science will be widely accessible via Europeana, which is the search platform for European digital libraries initiated by the European Commission. The content is useful for a wide range of user groups, such as interested laymen, engineers, scientists, lecturers, pupils, students all over the world, in that it opens new possibilities in multilingual searching, browsing and using of information sources.

Solutions for most present-day problems in the field of motion systems can be derived from existing designs. Unfortunately, large portions of this knowledge are difficult to access, since it is scattered over the world's libraries, museums, companies, universities, and other institutions. Also, it is stored in various forms, like textual descriptions, images, or diagrams.In recent years there have been efforts to digitalize sources of design solutions and make them available on the Internet. However, most of these repositories represent information in a way that does not meet the requirements of engineering designers concerning the retrieval of specific solutions.Furthermore, the presented paper shows the importance of design solution repositories and discusses methods and tools necessary to extract design solutions from sources and to describe them with metadata based on terms and concepts of motion science. These steps are important since they form essential prerequisites to allow target-oriented retrieval of solutions.

1 ABSTRACT Over the years the IFToMM dictionaries have been grown up to a comprehensive digital resource which can be used as dictionary as well as glossary with four languages in parallel. Regarding today’s needs of information retrieval in digital libraries it makes sense to see the IFToMM-terminology dataset as a semantic network which can be used to solve different retrieval problems in digital libraries providing content on mechanisms and machine science. The article presents the DMGLib as such a digital library and shows, how the content of the IFToMM dictionaries can be used to improve the retrieval process. Furthermore suggestions are made, how the IFToMM dictionaries could be extended to be more powerful and how the generation and maintenance process of the IFToMM dictionaries could be supported by online tools.

Solutions for many present-day problems in the field of motion systems can be derived from historical knowledge. Unfortunately, large portions of this knowledge are difficult to access, since it is scattered over the world's libraries, museums, companies, universities, and other institutions. Also, it is stored in various forms, like textual descriptions, images, or diagrams. In recent years there have been efforts to digitalize sources of historical knowledge and make them available on the Internet. However, most of these repositories represent information in a way that does not meet the requirements of engineering designers concerning the retrieval of specific solutions. The presented paper discusses methods and tools necessary to extract solutions from sources and to describe them with metadata based on terms and concepts of motion science.

The article starts with a presentation of a straight-forward global root finding algorithm featuring Newton-Raphson-like local root finding to find all solutions. After an analysis of the causes why it may fail, strategies are given to improve root finding. The strategies are tested and statistically analyzed with respect to two practical mechanical engineering problems: determining the point positions of an Assur group of third order and determining the translation and orientation of a Stewart Gough platform. In conclusion, ten advices are given on how to do root finding successfully and quickly.

Seit 2004 fördert die Deutsche Forschungsgemeinschaft ein Leistungszentrum für Forschungsinformation zur Sammlung, Bewahrung, Systematisierung, Vernetzung und geeigneten Präsentation des umfangreichen Wissens über Mechanismen und Getriebe. Bei diesem Projekt mit dem Namen „Digitale Mechanismenund Getriebebibliothek“ (DMG-Lib) werden neben Textdokumenten und Bildern auch computergestützte Funktionsmodelle bereitgestellt, die die Nutzer der DMG-Lib in Verbindung mit Simulationsund Analysesoftware verwenden können. Die Funktionsmodelle werden aus technischen Darstellungen extrahiert, in der DMG-Lib gespeichert und auch dort nutzbringend eingesetzt, z.B. für erweiterte Suchfunktionen. Der Artikel beschreibt die Vorgehensweise und erläutert anhand der Beispiele den momentanen Stand der Arbeiten. Ergänzt werden die Ausführungen durch zukünftige Aufgaben.